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US 2001/0019545 A1Published application
Packet transportation system in mobile communications
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsAkira Okubo, Hiroshi Matsuyama
Life of this patent
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Abstract
A system for transporting packet in mobile communications, including a packet transportation aid linked with another communication system for facilitating to transport a packet to its destination system. The packet transportation aid retrieves area information on a destination terminal from an outside register when the packet transportation aid has received a packet from a source terminal existing in the corresponding system. The packet transportation aid recognizes a destination system that can serve the destination terminal on the basis of the area information, and routes the packet directly to the destination system.
Claims15
A system for transporting packet in mobile communications, comprising:
- a plurality of subnetworks, each subnetwork including:
- a visitor location register for storing visitor information on individual mobile terminals visiting the corresponding subnetwork, the visitor information indicating zones where individual mobile terminals visit;
- a plurality of base stations capable of communicating with mobile terminals;
- at least one base station controller for controlling radio links between mobile terminals and the base stations;
- and
- a packet transportation aid for facilitating to transport a packet to its destination, the packet transportation aid, on the basis of the visitor information in the corresponding visitor location register, capable of controlling the base station controller and a necessary base station for transporting a packet to a destination mobile terminal,
- the system further comprising:
- a gateway for interlinking the subnetworks;
- and
- a home location register for storing area information about subnetworks in which individual mobile terminals of subscribers of the system currently exist,
- the packet transportation aid of each of the subnetworks retrieving the area information on a destination terminal from the home location register when the packet transportation aid has received a packet from a source terminal existing in the corresponding subnetwork, recognizing a destination subnetwork that can serve the destination terminal on the basis of the area information, and routing the packet directly to a destination packet transportation aid of the destination subnetwork.
8 more elements
A system for transporting packet in mobile communications, comprising:
- a visitor location register for storing visitor information on individual mobile terminals visiting the system, the visitor information indicating zones where individual mobile terminals visit;
- a plurality of base stations capable of communicating with mobile terminals;
- at least one base station controller for controlling radio links between mobile terminals and the base stations;
- and
- a packet transportation aid for facilitating to transport a packet to its destination, the packet transportation aid, on the basis of the visitor information in the visitor location register, capable of controlling the base station controller and a necessary base station for transporting a packet to a destination mobile terminal, the packet transportation aid being linked with another communication system, the packet transportation aid retrieving area information on a destination terminal from an outside register when the packet transportation aid has received a packet from a source terminal existing in the corresponding system, recognizing a destination system that can serve the destination terminal on the basis of the area information, and routing the packet directly to the destination system.
2 more elements
A system for transporting packet in mobile communications, comprising:
- a visitor location register for storing visitor information on individual mobile terminals visiting the system, the visitor information indicating zones where individual mobile terminals visit;
- a plurality of base stations capable of communicating with mobile terminals;
- at least one base station controller for controlling radio links between mobile terminals and the base stations;
- and
- a packet transportation aid for facilitating to transport a packet to its destination, the packet transportation aid, on the basis of the visitor information in the visitor location register, capable of controlling the base station controller and a necessary base station for transporting a packet to a destination mobile terminal, the packet transportation aid being linked with other communication systems, the packet transportation aid issuing an area replacement request to a source system where a source terminal exists when a destination terminal has traveled from a destination system to the corresponding system during reception of packets, the area replacement request indicating that the destination terminal exists in the corresponding system, the packet transportation aid receiving an untransmitted packet from the source system and controlling the base station controller and a necessary base station for transporting the untransmitted packet to the destination terminal.
2 more elements
Dependencies are inferred from the claim text.